Double-layer rail transit signal relay combination device

Abstract

The utility model discloses a double-layer rail transit signal relay combination device, and belongs to the technical field of rail transit signal control systems. The top plate is connected with the base, the top plate is provided with a relay socket slotted hole, the relay socket slotted hole is connected with a relay, and screw holes for fixing screws are arranged above and below the relay socket slotted hole; the base is provided with a combined side surface terminal plate mounting groove, the combined side surface terminal plate mounting groove is connected with a screw through a terminal plate mounting hole to fix the signal circuit breaker, and the structure of the base is hollow to form a square space. According to the utility model, flexible setting of common faults such as contact open circuit, wire mixing, high resistance and the like can be rapidly realized, field faults of equipment can be highly restored, and the device is suitable for various interlocking and blocking systems in the rail transit industry, does not need to change the whole framework of the existing relay combination, and has high compatibility and usability.

Description

Technical Field

[0001] This utility model relates to a double-layer rail transit signal relay combination device, belonging to the technical field of rail transit signal control system. Background Technology

[0002] Traditional rail transit signal relay combination sockets are front and rear straight-through type, with the front socket spring and the rear lead plate being an integrated design, which is not convenient for collecting contact status. In addition, in conducting technical personnel training, it is necessary to manually place tape or paper in the relay socket to simulate settings and relay contact faults, which is very difficult to operate.

[0003] In rail transit signal control systems, signal safety relays are core components widely used in equipment such as computer interlocking, 6502 electrical centralized systems, and ZPW2000 block systems. However, the mainstream railway signal relay combination sockets currently adopt a front-to-back straight-through design, in which the spring contacts on the front of the socket and the lead-in piece at the rear are integrated.

[0004] The existing signal relay socket structure has two main problems: First, it is not convenient to collect and adjust the status of the connection point; second, in the training of technicians and in actual teaching, simulating relay connection faults (such as open circuit, cross-connection and high resistance faults) requires manually placing tape or paper in the socket. This operation is not only time-consuming and laborious, but also has a large risk of misoperation, which greatly reduces the efficiency of teaching and training.

[0005] Existing technologies attempt to optimize relay combinations locally, such as by improving the standardized connection method of relay modules or adding external monitoring modules. However, these solutions are difficult to flexibly configure for faults at connection points and have poor compatibility with changes to existing hardware architectures, which limits the practical promotion and use of such technologies.

[0006] Existing equipment technical drawbacks: Difficulty in collecting contact status data: The integrated design of the front and back of the socket makes it difficult to perform accurate measurements and adjustments during technical maintenance and troubleshooting.

[0007] Fault simulation setup is cumbersome: Existing fault simulation solutions rely on manual operation, which cannot quickly achieve flexible setup for different types of contacts. Especially in technical training and teaching, it is inefficient and lacks systematic simulation methods.

[0008] Insufficient compatibility and practicality: Most improvement solutions require significant adjustments to the existing relay combination architecture, such as modifying the relay socket base plate. However, due to limited internal space, corresponding control circuits cannot be added, resulting in limited functionality. Furthermore, the internal wiring is too dense, leading to high external costs and affecting the compatibility and stability of the existing system. Utility Model Content

[0009] This invention addresses the technical problems existing in the prior art, thereby providing a dual-layer rail transit signal relay combination device.

[0010] The existing technical problem is solved by the following technical solution: a double-layer rail transit signal relay combination device, wherein the top plate is connected to the base, the top plate has a relay socket slot, the relay socket slot is connected to the relay, and screw holes for fixing screws are provided above and below the relay socket slot; there is a combination side terminal plate mounting slot, the combination side terminal plate mounting slot is connected to the signal circuit breaker through the terminal plate mounting hole, and a square space is hollowed out in the structure of the base.

[0011] The side structure is enclosed after the board is connected to the base, with pre-drilled screw holes on both sides. The rear has wiring terminals for assembly and connection to other assemblies. There are 1 to 6 mounting slots for the assembly side terminal board and 6 to 16 relay socket slots.

[0012] The relay's socket terminal is connected to the first resistor, the other end of the first resistor is connected to the photodiode, the other end of the photodiode is connected to the optocoupler, the other end of the optocoupler is connected to the second resistor, the other end of the second resistor is connected to the base of the transistor, the collector of the transistor is connected to the first diode, the other end of the first diode is connected to the second diode, the second diode is connected in parallel with the third resistor and the relay coil, and the output of the relay coil is connected to the output terminal.

[0013] The advantages of this utility model are that it adopts a standard railway signal safety interface, expands the programmable relay control board to connect to the 485 bus interface, is easy to install, is reliable to fix, and is convenient for data acquisition and control, and is suitable for railway and urban rail transit signal systems.

[0014] A connecting component is added between the front and back of the relay socket, and a programmable relay control board is embedded therein. This allows for flexible adjustment of the open circuit, cross-connection, and high-impedance faults of each group of signal contacts (including stationary and moving contacts). This dual-layer design retains the original relay socket architecture to the greatest extent possible, ensuring high compatibility between the new module and the deployed system.

[0015] The signal circuit fault simulation implementation, through the built-in programmable logic control unit, can flexibly set multiple common railway signal equipment fault scenarios, such as contact open circuit and signal conflict, which greatly simplifies the operation steps in the technical training and teaching process and improves the reliability and realism of fault simulation.

[0016] Modular installation and maintenance: The double-layer structure adopts a modular design, which does not require major changes to the existing hardware. It can be directly replaced and installed in railway computer interlocking, 6502 electrical centralized and ZPW2000 and other equipment. It is easy to disassemble and assemble, ensuring long-term stable operation of the equipment while greatly reducing maintenance costs.

[0017] This utility model provides a double-layer rail transit signal relay combination device. Through the double-layer combination design of key structures, it solves the core problems of traditional relay combinations in terms of contact fault simulation, state measurement and system compatibility.

[0018] The technical solution of this utility model can not only quickly realize the flexible setting of common faults such as contact open circuit, mixed line and high resistance, but also highly reproduce the equipment on-site faults. It is applicable to a variety of interlocking and block systems in the rail transit industry, and does not require modification to the existing relay combination overall architecture, and has high compatibility and ease of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. As shown in the figures:

[0020] Figure 1 This is a top view of the present invention.

[0021] Figure 2 This is the front view of the present invention.

[0022] Figure 3 This is a circuit diagram of the control board portion of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: A double-layer rail transit signal relay combination device, such as Figure 1 and Figure 2As shown, the top plate 1 is connected to the base 7. Relay socket slots 3 (a total of 10 relay socket slots 3) are cut according to the size of the relay socket. Relays 4 are connected to the relay socket slots 3. Screw holes for fixing screws 5 are set above and below the relay socket slots 3. There are two combined side terminal board mounting slots 2 on the far left. The combined side terminal board mounting slots 2 are connected to the signal circuit breaker by screws through the terminal board mounting holes 6. The base 7 has a square space in its structure to facilitate wiring construction and installation. The front and rear panels are connected for wiring.

[0025] Alternatively, there may be 1 to 6 combined side terminal block mounting slots 2, or 6 to 16 relay socket slots 3.

[0026] The side structure is closed after the top plate 1 is connected to the base 7. The two sides are reserved with mounting screw holes to facilitate fixing with the signal combination cabinet to form a stable structure and ensure that the installation is firm and reliable. The rear wiring is the wiring of this combination and the wiring terminal for connecting with other combinations.

[0027] like Figure 3 As shown, the IN terminal of relay 4 is connected to the first resistor R1. The other end of the first resistor R1 is connected to the photodiode LED1. The other end of the photodiode LED1 is connected to the optocoupler N1. The other end of the optocoupler N1 is connected to the second resistor R9. The other end of the second resistor R9 is connected to the base of transistor Q1. The collector of transistor Q1 is connected to the first diode D1. The other end of the first diode D1 is connected to the second diode D9. The second diode D9 is connected in parallel with the third resistor R25 and the relay coil K1. The output of the relay coil K1 is connected to the output terminal OUT.

[0028] Example 2: A double-layer rail transit signal relay combination device. The double-layer rail transit signal relay combination has the original railway signal combination in the front row and the designed structural components in the back row. The arrangement and installation of the relays on the front and the arrangement of the relay contacts on the back are consistent with the standardized railway signal combination. The side combination terminals are matched with the original combination to facilitate wiring connection.

[0029] A dual-layer rail transit signal relay combination device is disclosed. It contains a programmable relay control board, and the acquisition and drive circuits employ optocoupler isolation technology to avoid interfering with the original rail transit control command transmission. This also protects the microcontroller from high voltage or current. The optocoupler completely isolates the input and output circuits, improving system safety and stability. The relays internally employ current-limiting protection. Since the relay electromagnetic coil is an inductive element, it will generate a reverse voltage during switching. By adding components such as freewheeling diodes, other circuit components can be protected from damage.

[0030] The programmable relay control board uses a 485 bus interface. The computer can control it via a USB interface and RS485 bus conversion. After receiving the control command, the programmable relay board controls the switching state of the corresponding relay according to the command content.

[0031] Meanwhile, the programmable relay control board can also feed back the relay status information to the host computer, so that users can understand the relay's working status in real time.

[0032] The computer output controls the programmable control board to control the connection and disconnection of fault setting points, simulating the connection and disconnection of the original circuit.

[0033] The connected equipment returns to normal. The disconnected circuit is cut off at the corresponding point, simulating a real-world equipment disconnection fault.

[0034] The fault symptoms set on the simulation fault setting board are identical to those set on the actual equipment, and the methods for finding and handling the fault are the same, with no impact whatsoever. One fault or multiple faults can be set simultaneously.

[0035] A double-layer rail transit signal relay combination device is disclosed. The relay socket continues to use the original rail transit industry standard socket. The internal contact fault setting of the relay is realized by designing a double-layer signal relay combination method. It is compatible with existing rail transit computer interlocking, section block and other systems, without destroying the original relay combination overall architecture. It has strong compatibility and is easy to install and use quickly.

[0036] The dual-layer signal combination structure solves the problem of the inability to quickly set faults in traditional railway signal relay contacts. By adding a programmable relay control board through the connection point between the front and rear relay sockets of the structure, it is possible to flexibly set open circuit, mixed-wire, and high-resistance faults for any group of contacts (static and moving contacts) of each signal relay, highly replicating various real-world faults that are prone to occur in railway signal field equipment. This facilitates training and instruction for signal technicians.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer rail transit signal relay combination device, characterized in that, The top plate is connected to the base. The top plate has a relay socket slot for connecting a relay. Screw holes for fixing screws are provided above and below the relay socket slot. There is a combined side terminal board mounting slot. The combined side terminal board mounting slot is connected to the terminal board mounting hole and screws are used to fix the signal circuit breaker. A square space is left in the structure of the base.

2. The double-layer rail transit signal relay combination device according to claim 1, characterized in that, The side structure is closed after the top plate is connected to the base, with pre-drilled screw holes on both sides, and wiring and wiring terminals at the rear.

3. The double-layer rail transit signal relay combination device according to claim 1, characterized in that, It has 1 to 6 combined side terminal block mounting slots and 6 to 16 relay socket slots.

4. A double-layer rail transit signal relay combination device according to claim 1, characterized in that, The relay's socket terminal is connected to the first resistor, the other end of the first resistor is connected to the photodiode, the other end of the photodiode is connected to the optocoupler, the other end of the optocoupler is connected to the second resistor, the other end of the second resistor is connected to the base of the transistor, the collector of the transistor is connected to the first diode, the other end of the first diode is connected to the second diode, the second diode is connected in parallel with the third resistor and the relay coil, and the output of the relay coil is connected to the output terminal.

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